英语语法分析

On the basis of this, a completely new method of natural water renewability assessment was developed.

在此基础上，建立了一种全新的水资源自然再生能力评价方法。

An optimization model on life cycle net energy cost related to renewability of cassava-based ethanol blended gasoline fuels was given in this paper.

建立了木薯-汽油混合燃料考虑可再生性的生命周期净能源成本优化模型，并对木薯乙醇-汽油混合燃料考虑可再生性的生命周期净能源成本指标进行了优化。

The assessment results indicate there are quasi cycle motion law of natural water resources renewability of Jin river basin in the time scale in years.

评价结果表明：泾河流域水资源自然再生能力在年内时间尺度上存在明显的准周期运动规律。